Alati su jednostavni pomoćni programi, kao što je kalkulator ili beležnica, koji se izvršavaju paralelno sa radom nekog drugog programa. Alati su mali korisni programi bez kojih većina korisnika Mekintoš računara ne bi mogla da živi.
A type of small program on Macintosh computers and in windowing programs for IBM and PC-compatible machines that acts as the electronic equivalent of a clock, calendar, calculator, or other small appliance found on a typical desktop. Desk accessories are conveniences that can be activated when needed and then either put away or moved to a small part of the screen. A special type of desk accessory, a control panel, provides the user with the ability to change the date and time as well as to control screen colors, mouse movements, and other parameters. Acronym: DA. Also called: desktop accessory. See also control panel.